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Journal of Optometry

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https://www.readbyqxmd.com/read/28629902/relationship-between-vessel-diameter-and-depth-measurements-within-the-limbus-using-ultra-high-resolution-optical-coherence-tomography
#1
Emmanuel Alabi, Natalie Hutchings, Kostadinka Bizheva, Trefford Simpson
PURPOSE: To establish a relationship between the diameter and depth position of vessels in the superior and inferior corneo-scleral limbus using ultra-high resolution optical coherence tomography (UHR-OCT). METHODS: Volumetric OCT images of the superior and inferior limbus were acquired from 14 healthy subjects with a research-grade UHR-OCT system. Differences in vessel diameter and depth between superior and inferior limbus were analyzed using repeated measured ANOVA in SPSS and R...
June 16, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28619486/extended-depth-of-focus-contact-lenses-vs-two-commercial-multifocals-part-2-visual-performance-after-1-week-of-lens-wear
#2
Ravi C Bakaraju, Daniel Tilia, Jennifer Sha, Jennie Diec, Jiyoon Chung, Danny Kho, Shona Delaney, Anna Munro, Varghese Thomas
PURPOSE: To compare the visual performance of prototype contact lenses designed via deliberate manipulation of higher-order spherical aberrations to extend-depth-of-focus with two commercial multifocals, after 1 week of lens wear. METHODS: In a prospective, participant-masked, cross-over, randomized, 1-week dispensing clinical-trial, 43 presbyopes [age: 42-63 years] each wore AIROPTIX Aqua multifocal (AOMF), ACUVUE OASYS for presbyopia (AOP) and extended-depth-of-focus prototypes (EDOF) appropriate to their add requirements...
June 12, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28606456/extended-depth-of-focus-contact-lenses-vs-two-commercial-multifocals-part-1-optical-performance-evaluation-via-computed-through-focus-retinal-image-quality-metrics
#3
Ravi C Bakaraju, Klaus Ehrmann, Arthur Ho
PURPOSE: To compare the computed optical performance of prototype lenses designed using deliberate manipulation of higher-order spherical aberrations to extend depth-of-focus (EDOF) with two commercial multifocals. METHODS: Emmetropic, presbyopic, schematic eyes were coupled with prototype EDOF and commercial multifocal lenses (Acuvue Oasys for presbyopia, AOP, Johnson & Johnson & Air Optix Aqua multifocal, AOMF, Alcon). For each test configuration, the through-focus retinal image quality (TFRIQ) values were computed over 21 vergences, ranging from -0...
June 9, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28601401/orbital-magnetic-resonance-imaging-is-useful-in-age-related-distance-esotropia
#4
Pilar Gómez de Liaño Sanchez, Gloria Olavarri González, Pilar Merino Sanz, Jose C Escribano Villafruela
PURPOSE: To describe findings for orbital magnetic resonance imaging (MRI) in patients with age-related distance esotropia (ARDE). METHODS: We compared 31 orbital MRI from patients with ARDE (77±7 SD years) with 2 control groups: 32 orbits from individuals aged 18-50 years (33±8 SD years) and 16 orbits from individuals aged >60 years (77±7 SD years). MRI scans were acquired using 3D fast field echo in T1 sequence without fat saturation. Exclusion criteria for all groups were neurological or thyroid disease and a relevant ophthalmological history (e...
June 7, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28599912/efficacy-of-vision-therapy-in-children-with-learning-disability-and-associated-binocular-vision-anomalies
#5
Jameel Rizwana Hussaindeen, Prerana Shah, Krishna Kumar Ramani, Lalitha Ramanujan
PURPOSE: To report the frequency of binocular vision (BV) anomalies in children with specific learning disorders (SLD) and to assess the efficacy of vision therapy (VT) in children with a non-strabismic binocular vision anomaly (NSBVA). METHODS: The study was carried out at a centre for learning disability (LD). Comprehensive eye examination and binocular vision assessment was carried out for 94 children (mean (SD) age: 15 (2.2) years) diagnosed with specific learning disorder...
June 6, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28599911/refraction-during-incipient-presbyopia-the-aston-longitudinal-assessment-of-presbyopia-alap-study
#6
Deborah S Laughton, Amy L Sheppard, Leon N Davies
PURPOSE: To investigate non-cycloplegic changes in refractive error prior to the onset of presbyopia. METHODS: The Aston Longitudinal Assessment of Presbyopia (ALAP) study is a prospective 2.5 year longitudinal study, measuring objective refractive error using a binocular open-field WAM-5500 autorefractor at 6-month intervals in participants aged between 33 and 45 years. RESULTS: From the 58 participants recruited, 51 participants (88%) completed the final visit...
June 6, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28499859/reply-to-letter-to-the-editor-by-griffiths-et-al-commenting-on-evans-allen
#7
LETTER
Bruce J W Evans, Peter M Allen
No abstract text is available yet for this article.
May 9, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28372637/better-methods-of-clinically-assessing-mucus-functions-are-required
#8
EDITORIAL
Charles W McMonnies
No abstract text is available yet for this article.
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/27423689/parents-awareness-and-perception-of-children-s-eye-diseases-in-nigeria
#9
Jennifer A Ebeigbe, Chike Martin Emedike
PURPOSE: Most causes of childhood blindness are treatable or preventable. Knowledge of parents' awareness and perception of eye problems is important in helping to understand parents' eye care seeking behavior. This understanding becomes necessary as early detection and intervention can be effective when done at an early age. METHOD: Study was carried out in Benin City, Nigeria. Thirty-five parents aged 38-54 years with a mean age of 43(±2) years were recruited...
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/27402573/evaluation-of-goldmann-applanation-tonometry-rebound-tonometry-and-dynamic-contour-tonometry-in-keratoconus
#10
COMPARATIVE STUDY
Fatih Özcura, Nilgün Yıldırım, Emre Tambova, Afsun Şahin
PURPOSE: To compare the intraocular pressure (IOP) measurements obtained with the rebound tonometry (RT), dynamic contour tonometry (DCT) and Goldmann applanation tonometry (GAT) in keratoconic corneas and to investigate the effects of central corneal thickness (CCT) and corneal radius of curvature (CR) on IOP measurements. METHODS: Sixty-three eyes of 63 keratoconus patients were enrolled in this cross-sectional study. IOP was measured on each subject always in the same order, ICare RT-Pascal DCT-GAT, after a minimum interval of 10min between measurements...
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/27349992/multichannel-perimetric-alterations-in-systemic-lupus-erythematosus-treated-with-hydroxychloroquine
#11
David P Piñero, Begoña Monllor, Vicente J Camps, Dolores de Fez
Systemic lupus erythematosus (SLE) is a multiorgan autoimmune disease of unknown etiology with many clinical manifestations. We report the first case of SLE in which visual alterations were evaluated with multichannel perimetry. Some achromatic and color vision alterations may be present in SLE, especially when treated with hydroxychloroquine. The sensitivity losses detected in the chromatic channels in the central zone of the visual field were consistent with the results of the FM 100 Hue color test. Likewise, the multichannel perimetry detected sensitivity losses in the parafoveal area for both chromatic channels, especially for the blue-yellow...
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/27321772/efficacy-of-an-eye-drop-mixture-for-pupillary-dilatation-a-randomized-comparative-study
#12
RANDOMIZED CONTROLLED TRIAL
Patama Bhurayanontachai, Suwapat Saengkaew, Penjamaporn Apiromruck
PURPOSE: Pupillary dilatation with three types of eye drops is used regularly in the clinic; however, a mixture of these drops in a single bottle may be more beneficial in reducing workloads and resources. This study compared the efficacy in pupillary dilatation between two protocols of dilating drop instillation. METHODS: This prospective, randomized, comparative study included 30 eligible Thai patients. The patients randomly received preoperative pupillary dilatations by either the conventional protocol (1% tropicamide (T), 10% phenylephrine (P) and 0...
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/27162118/toward-developing-a-standardized-arabic-continuous-text-reading-chart
#13
Balsam Alabdulkader, Susan Jennifer Leat
PURPOSE: Near visual acuity is an essential measurement during an oculo-visual assessment. Short duration continuous text reading charts measure reading acuity and other aspects of reading performance. There is no standardized version of such chart in Arabic. The aim of this study is to create sentences of equal readability to use in the development of a standardized Arabic continuous text reading chart. METHODS: Initially, 109 Arabic pairs of sentences were created for use in constructing a chart with similar layout to the Colenbrander chart...
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/27025415/glaucoma-history-and-risk-factors
#14
REVIEW
Charles W McMonnies
Apart from the risk of developing glaucoma there is also the risk that it is not detected and irreversible loss of vision ensues. Some studies of methods of glaucoma diagnosis have examined the results of instrument-based examinations with great if not complete reliance on objective findings in arriving at a diagnosis. The very valuable advances in glaucoma detection instrument technologies, and apparent increasing dependence on them, may have led to reduced consideration of information available from a patient history in those studies...
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/26987544/prevalence-of-color-vision-deficiency-among-arc-welders
#15
Samira Heydarian, Monireh Mahjoob, Ahmad Gholami, Sajjad Veysi, Morteza Mohammadi
PURPOSE: This study was performed to investigate whether occupationally related color vision deficiency can occur from welding. METHODS: A total of 50 male welders, who had been working as welders for at least 4 years, were randomly selected as case group, and 50 age matched non-welder men, who lived in the same area, were regarded as control group. Color vision was assessed using the Lanthony desatured panel D-15 test. The test was performed under the daylight fluorescent lamp with a spectral distribution of energy with a color temperature of 6500K and a color rendering index of 94 that provided 1000lx on the work plane...
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/26922840/long-term-results-of-myoring-treatment-of-keratoconus
#16
Albert Daxer, Armin Ettl, Robert Hörantner
PURPOSE: To study long-term results of MyoRing treatment of keratoconus. METHODS: Retrospective study of MyoRing implantation into a corneal pocket for keratoconus. RESULTS: Corneal thickness at the thinnest point remained unchanged, SIM K's, manifest sphere and cylinder were significantly improved at the first follow-up 9 months postoperatively and remained stable until the last follow-up about 5 years after surgery. Uncorrected and corrected distance visual acuity (UDVA, CDVA) were significantly improved at the first follow-up 9 months postoperatively and were further ameliorated until the last follow-up about 5 years after surgery...
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/26896051/should-we-add-visual-acuity-ratios-to-referral-criteria-for-potential-cerebral-visual-impairment
#17
Ymie J van der Zee, Peter Stiers, Heleen M Evenhuis
PURPOSE: To determine whether the assessment of visual acuity ratios might improve the referral of children with (sub)normal visual acuity but at risk of cerebral visual impairment. METHODS: In an exploratory study, we assessed visual acuity, crowding ratio and the ratios between grating acuity (Teller Acuity Cards-II) and optotype acuity (Cambridge Crowding Cards) in 60 typically developing school children (mean age 5y8m±1y1m), 21 children with ocular abnormalities only (5y7m±1y9m) and 26 children with (suspected) brain damage (5y7m±1y11m)...
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/26872405/circumscribed-choroidal-hemangioma-a-case-report-and-literature-review
#18
REVIEW
Morgan Berry, Linda J H Lucas
Choroidal hemangioma is a rare congenital ocular tumor that can present as either circumscribed or diffuse. Circumscribed choroidal hemangioma (CCH) typically manifests as a red-orange mass within the posterior pole and appears similar to other ocular conditions, such as choroidal melanoma and choroidal metastasis. Proper diagnosis is crucial and is aided by the use of ancillary testing. CCH itself is benign but can cause secondary complications such as subretinal fluid accumulation and subsequent retinal detachment...
April 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28262507/influence-of-refractive-error-on-pupillary-dynamics-in-the-normal-and-mild-traumatic-brain-injury-mtbi-populations
#19
James Q Truong, Nabin R Joshi, Kenneth J Ciuffreda
PURPOSE: There have been several studies investigating static, baseline pupil diameter in visually-normal individuals across refractive error. However, none have assessed the dynamic pupillary light reflex (PLR). In the present study, both static and dynamic pupillary parameters of the PLR were assessed in both the visually-normal (VN) and the mild traumatic brain injury (mTBI) populations and compared as a function of refractive error. METHODS: The VN population comprised 40 adults (22-56 years of age), while the mTBI population comprised 32 adults (21-60 years of age) over a range of refractive errors (-9...
March 2, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28237358/audio-visual-interaction-in-visual-motion-detection-synchrony-versus-asynchrony
#20
Stephanie Rosemann, Inga-Maria Wefel, Volkan Elis, Manfred Fahle
OBJECTIVE: Detection and identification of moving targets is of paramount importance in everyday life, even if it is not widely tested in optometric practice, mostly for technical reasons. There are clear indications in the literature that in perception of moving targets, vision and hearing interact, for example in noisy surrounds and in understanding speech. The main aim of visual perception, the ability that optometry aims to optimize, is the identification of objects, from everyday objects to letters, but also the spatial orientation of subjects in natural surrounds...
February 23, 2017: Journal of Optometry
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